Roofing.



W. T. MGKAY.

ROOFING.

APPLICATION FILED DBO. 7, 1911.

'Patented Dec; 9, 1913.

2 SHEETS-SHEET 1.

W. F. MoKAY.

ROOFING.

APPLICATION FILED 1111s.?. 1911.

Patented 11120111913.`

2 SHEETS-SHEET 2.

nu if? 40,

Tw I UW"- WILLIAM F. MGKAY, 0F LA GRANGE, ILLINOIS.

RooFING.

I Specification of Letters Patent.

Application filed December 7, 1911.

Patented Dec. 9, 1 913. serial No. 664,415.

To' all whom t may concern:

Be it known that I, IVILLIAM F. MGKAY, a citizen of the United States, residing at La Grange, in the county of Cook and State ot' Illinois, have invented certain new and useful Improvements in Roofing, of which the following is a specication.

My invention relates to improvements in rooting, and has for its general object to provide a product wherein base strips of feltlike rooting fabric are suitably prepared and have deposited thereon water-resistive material, preferably of an asphalt origin, such deposits being fashioned to resemble shingles in appearance, but cach representation ot a shingle being an integral inseparable part of the sheet or strip.

In carrying my invention into etlect, I provide a long strip, or sheet, of porous, fibrous, flexible material, such as used usually for making plain roofing sheets and commonly known as felt. This sheet constitutes the base of my product and it should. be as wide as necessary for a given number of courses of shingles, or representations thereot', that are to be superposed thereon. I then apply upon said base, preferably while in transit, a coating of waterproofing material in a relatively thick layer, then remove an excess of said applied material or the like, by pinch rollers or otherwise, and :fashion the superposed layer ot applied material so as to simulate the appearance ot' shingles that have been laid in courses thereon. The sheets are then rolled up or cut into lengths suitable for convenient packing and shipping, and are crated, if necessary, for shipment.

VVarious features of novelty, whereby my invention is characterized, will hereinafter be pointed out with particularity in the claim; but for a full and clear understanding of my invention and. its various objects and advantages, reference will he had to the following detailed description taken in conjunction with the accompanyingT drawings, wherein- Figure l is a'schematic view, partly in elevation and'partly in section, ot' a system that may be employed in carrying my .invention into effect; Fig. 2 is a plan v iew thereof; Fig. 3 is an enlarged longitudinal central section of the roll, whereby the configuration ot' the sheet is impressed in the to) surface; Fig. :l is a transverse section taken on line 4l-t of F ig'. 3; Fig. 5 is an e'nd view ofthe roll; Fig. 6 is a plan view of the product herein claimed; and Fig. 7 1s a transverse sectional view taken on line 7-7 ot' Fig. 6.

In all of the views the same reference characters indicate similar parts.

In producing the roofing a felt paper sheet A, supported initially in the form of a roll 10, fed from a suitable roll support ll, over guiding rollers l2, at the top and bott-om of the tank 13, so as to pass down into and through the tank for immersion in a fluid body B, therein. The tank 13 con` tains a solution which is thoroughly waterproof, and which is ,apable, when fluid, of thoroughly permeating the porous web or sheet A, and which has a melting point sulliciently high to resist. the accuniulative heat of the sun upon the rooi-say av melting point zuiproximating 300O lib-and the solution is maintained fluid in the tank by constant application .of heat thereto, as through the agency ot' superheated coils within the tank, or by other convenient means. Such a saturating or \\\'a.tcr-proof ing solution .I find effectively to be provided by a. composition of eight part.l asphalt with a nlelting point ot 2G00 F., two parts of asphalt with a melting point oi .t100 F., two parts ot' wax tailings` and one part of resin, all heated to such a degree that it will penetrate the, porous :t'elt sheet A, or to say about: 3500 F. In passing from the tank, thc dipped web is carried through a doctor or stripping mechanism 15h-I6. which' relieves it of superfluous material, such structure rn'eferably consisting oi a pair ot opposed scraper-heads 15*'15, separated slightly in a vertical planta-and mounted lor relative movement on screws lG-IGQ in suitable lixcd supports, so thatthcir tension against the passing primarily coated or saturated web may be adjusted. From the tank 13, the web in a saturated condition passes on to receive, upon the upper surface thereof, a thicker. secondary. or body, coat ot plastic material, and to this endin the embodiment shown, it passes into a tank (l, containing a body ot suitable melted plastic material. lt desired. this material may be mechanically deposited upon the web iustead of passing the web into the tank (l. This secondary coating material has a still higher melting pointl than the fluid body B, and such nuderial l find is best supplied to the sheet. at a temperature sufficiently close slate or the like, or

to the melting point to adhere thereto thickly. Then cool, the coating should be of water-proof character, having its stability practically unaffected by ordinary atmospheric or sun heat. Such a deposit I find may well be provided by employment of 6 parts of .asphalt having a melting point of 300o F.; five parts of asphalt having a melting point of 140O F.; and two or three parts of powdered mineral, such for example as any other suitable weather resisting material, preferably having a tendency to reduce the sliding quality of the compound.

It will be understood that the particular compounds above referred to are given only for purposes of full disclosure, as one means for carrying the invention into effect, and without intent to indicate that the invention is by any means limited to employment of the materials, quantities, or melting points specified, as wide variation may be made in the materials, etc., employed, without departure from the spirit and scope of the in vention, although, preferably, I employ in the initial coating of the material a waterproofing compound which will thoroughly permeate the base web, resist the action of sun heat, and combine with the superposed secondary coat. j

In the specific construction shown in the drawings, the web passes in the tank C under the bottom roller 20, and up over a doctor or stripper 21, which takes from its under side substantially all of the material of the secondary coating deposited on v such side of the sheet, so that the web passes to the top of the tank with only a relatively thick coating upon its upper side. On leaving the pinch rollers 18-19 at A, the web passes to a suitably driven conveyer 26, by which the web may be driven, preferably consisting of pair of chains 27, .and intermediate slots 28, the chains being supported and driven by suitable sprockets 29, one or more of which may be driven by any suitable source ofpower, not shown.

During the early portion of the excursion of the'web from the tank C, it is cooled to a suit-able extent and to a degree that renders it suitably plastic, as by a blast of air directed thereto from a fan 31, suitably driven, as by motor 32, or by any other suitable cooling means, and the plastic coating is covered with powdered slate, or like substance, for giving the product the desired superficial appearance and to relieve the iinished sheet of stickiness. To this end, l use such powdered material supplied from a dredge 33, consisting of a hopper, 34, and a rotating', perforated drum 35, therein, suitably filled with powdered material and driven, as by motor 32, evenly to shake the material down from the hopper to the upper surface of the web. After receiving the `finishing coat, the web must be sufficiently l cooledprior to being subjected to the forming roller. This may be accomplished by passing over water-cooled surfaces, or by other suitable means.

The shingle-forming which the strip of prepared material, carry ing a heavy deposit of sufficiently cooled, plastic, asphalt, is formed into a shinglelike surface, is preferably made by arranging a series of annually tapered pulleys 38-39-40-4L upon a shaft 42. rlhe shaftis splined and the feather 43 prevents the pulley sections from turning on the shaft. Collars 44 and 45 hold the sections together, and the composite sections of the roll in longitudinal position. The shaft may be screwthreaded, as at 45, and the collars may make screw-threaded engagement therewith, and may be held to prevent rotation, by set screws 4G, or any other desirable means may be employed to hold the assembled parts in proper relation on the shaft. Each section of the roll istapered, as at 47. The angle. of the taperfcorresponds, substantially, with the angle of the taper of a wooden shingle. At intervals, around the tapered periphery,- the pulley sections are longitudinally lgrooved, as at 48, for insertion of blades 49. rlhe blades are preferably arranged at their ends, so that the adjoining roll section holds them in place. ln the illustration, Fig. 8, the blades are shown as provided with project-ing end parts 50, that enter circumferential grooves made into the end of the adjacent pulley. By this means, new blades may be easily inserted to replace the old worn blades. rlhe edges of the blades project radially beyond the circumferential isurfaces of the roll.` VAs the web, with the deposited coat of asphalt,- passes under the roll, the plastic asphalt is formed into a transverse series of longitudinally extending, tapered surfaces, and as the blades 49 enter the plastic material, they impress grooves or kerfs 54 therein, at suitable intervals, to give the web strip the appearance of a plurality of courses of shingles, as they appear upon a roof, and as illustrated in Figs. 6 and 7. A, flat portion, 51, of the roll, fiattens the derelatively even marginal edge 59, about two inches wide over which the lower edge ofv4 lengths for convenient handling and crating,

' 7o roll 37, by means of.

p'osit of the plastic material and provides a or it may be rolled up in long lengths for shipping.

While, for purposes of showing the exact constitution of the product claimed, I have described the process by which it is made, it will be apparent that the attainment of such a product by methods varying from that herein described Will fall within the contemplated scope of the appended claim.

What I claim is:

An article of manufacture comprising a continuous weather-proofed sheet of felt of uniform thickness having a deposit of mas tic asphalt-like substance superposed thereon, said substance formed into a series of longitudinally-extending transversely-tapering courses, each course having impressed therein, at intervals, kerits in staggering relation with reference to the adjoining courses, said kerfs extending through the mastic material to the weather-proofed ielt sheet, and a marginal flat surface, provided by the felt sheet only at one edge for lapjoint association with a like adjoining structure.

In testimony whereof I hereunto set my hand in the presence of two witnesses.

' W. LINN ALLEN,

MARY F. ALLEN. 

